Making his big league debut, McLean shut out the Seattle Mariners over 5 1/3 innings on Saturday afternoon at Citi Field in a 3-1 win, navigating a deep lineup with an array of spinning breaking pitches. It was an impressive outing for the rookie right-hander, but when manager Carlos Mendoza went out to the mound in the sixth, fans booed the move.

Rookie Nolan McLean delivered what the Mets needed in his MLB debut, striking out eight and flashing some clutch leather over 5 1/3 scoreless innings in a 3-1 win over the Mariners.

Nolan McLean strikes out eight across 5 1/3 scoreless innings of work to record a win in his MLB debut against the Mariners